Why does the master password request open when I open the browser?
When I start Firefox and my Google home page opens, the popup for my master password opens. What can i do to prevent that event?
Wšykne wótegrona (1)
Are you using Sync to sync data to other devices?
The Sync version in current Firefox releases (34+) uses the password manager to store the name (e-mail) and password to be used to connect to the Sync server.
Firefox will also ask for the master password if you open a web page with a login field and you have saved a name and password in the Password Manager